Definition
Memecoins are usually named after a joke, animal or trend. They have no required utility, so their price follows attention.
How they launch on Solana
Most start on a launchpad where anyone can create a token and trade it on a bonding curve. When enough is bought, the token moves to a regular liquidity pool. See how to launch a memecoin on Solana.
Risks
Prices can fall to near zero quickly, and scams are common. See what a rug pull is.